LG | LTNC246QLE0.AWGBIDA | LG LTNC186QLE0.AWGBIDA Owner’s Manual

OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : CEILING CASSETTE
www.lg.com
P/NO : MFL68122301
Ceiling Cassette Air Conditioner Ownerʼs Manual
TABLE OF CONTENTS
Safety Precautions.........................3
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Prior to Operation ..........................6
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Introduction ....................................7
Date Purchased
n Staple your receipt to this page in the event you
need it to prove date of purchase or for warranty
issues.
Electrical Safety .............................8
READ THIS MANUAL
Operating Instructions ..................9
Wireless Remote Controller........10
Part Description (Optional) .........14
Maintenance and Service ............38
Inside you will find many helpful hints on how to use
and maintain your air conditioner properly. Just a little
preventive care on your part can save you a great deal
of time and money over the life of your air conditioner.
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call
for service at all.
PRECAUTION
• Contact the authorized service technician for
repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• The air conditioner is not intended for use by
young children or invalids without supervision.
• Young children should be supervised to ensure
that they do not play with the air conditioner.
• When the power cord is to be replaced,
replacement work shall be performed by
authorized personnel only using only genuine
replacement parts.
• Installation work must be performed in
accordance with the National Electric Code by
qualified and authorized personnel only.
2 Ceiling Cassette Air Conditioner
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness
is classified by the following indications.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage.
n Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
n OUT DOOR UNIT'S FEATURE MAY NOT BE SAME AS THAT OF MANUAL DRWAING.
n Installation
Do not use a defective or
underrated circuit breaker.
Use this appliance on a
dedicated circuit.
• There is risk of fire or electric
shock.
For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.
• Do not disassemble or repair the
product. There is risk of fire or
electric shock.
Install the panel and the
cover of control box
securely.
Always install a dedicated
circuit and breaker.
• There is risk of fire or electric
shock.
• Improper wiring or installation
may cause fire or electric shock
Do not modify or extend the
power cable.
• There is risk of fire or electric
shock.
For installation, always contact the
dealer or an Authorized Service Center.
• There is risk of fire, electric
shock, explosion, or injury.
Do not install, remove, or
re-install the unit by
yourself (customer).
• There is risk of fire, electric
shock, explosion, or injury.
Always ground the product.
• There is risk of fire or electric
shock.
Use the correctly rated
breaker or fuse.
• There is risk of fire or electric
shock.
Be cautious when unpacking
and installing the product.
• Sharp edges could cause injury.
Be especially careful of the case
edges and the fins on the
condenser and evaporator.
Do not install the product on
a defective installation stand.
Be sure the installation area
does not deteriorate with age.
• It may cause injury, accident, or
damage to the product.
• If the base collapses, the air
conditioner could fall with it,
causing property damage, product
failure, and personal injury.
Owner's Manual 3
Safety Precautions
n Operation
Do not let the air conditioner run for a
long time when the humidity is very high
and a door or a window is left open.
• Moisture may condense and wet
or damage furniture.
Do not plug or unplug the
power supply plug during
operation.
• There is risk of fire or electric
shock.
Do not allow water to run
into electric parts.
• It may cause There is risk of fire,
failure of the product, or electric
shock.
When flammable gas leaks,
turn off the gas and open a
window for ventilation
before turn the product on.
Take care to ensure that power
cable could not be pulled out or
damaged during operation.
Do not place anything on
the power cable.
• There is risk of fire or electric
shock.
• There is risk of fire or electric
shock.
Do not touch(operate) the
product with wet hands.
Do not place a heater or
other appliances near the
power cable.
• There is risk of fire or electrical
shock.
• There is risk of fire and electric
shock.
Do not store or use
flammable gas or
combustibles near the
product.
Do not use the product in a
tightly closed space for a
long time.
• Oxygen deficiency could occur.
• There is risk of fire or failure of
product.
If strange sounds, or small or
smoke comes from product. Turn
the breaker off or disconnect the
power supply cable.
Stop operation and close the window
in storm or hurricane. If possible,
remove the product from the window
before the hurricane arrives.
• Do not use the telephone or turn
switches on or off.
There is risk of explosion or fire
• There is risk of electric shock or
fire.
• There is risk of property damage,
failure of product, or electric
shock.
Do not open the inlet grill of the
product during operation.
(Do not touch the electrostatic
filter, if the unit is so equipped.)
When the product is soaked
(flooded or submerged),
contact an Authorized
Service Center.
• There is risk of physical injury,
electric shock, or product failure.
• There is risk of fire or electric
shock.
Ventilate the product from time to time when
operating it together with a stove, etc.
• There is risk of fire or electric shock.
When the product is not be used for a long
time, disconnect the power supply plug or
turn off the breaker.
• There is risk of product damage or failure, or
unintended operation.
4 Ceiling Cassette Air Conditioner
Be cautious that water
could not enter the product.
• There is risk of fire, electric shock,
or product damage.
Turn the main power off when cleaning or
maintaining the product.
• There is risk of electric shock.
Take care to ensure that nobody could step
on or fall onto the outdoor unit.
• This could result in personal injury and product
damage.
Safety Precautions
n Installation
Always check for gas
(refrigerant) leakage after
installation or repair of product.
Install the drain hose to
ensure that water is
drained away properly.
Keep level even when
installing the product.
• Low refrigerant levels may cause
failure of product.
• A bad connection may cause
water leakage.
• To avoid vibration or water
leakage.
Do not install the product where the
noise or hot air from the outdoor unit
could damage the neighborhoods.
• It may cause a problem for your
neighbors.
Use two or more people to
lift and transport the
product.
• Avoid personal injury.
Do not install the product
where it will be exposed to sea
wind (salt spray) directly.
• It may cause corrosion on the product.
Corrosion, particularly on the condenser
and evaporator fins, could cause product
malfunction or inefficient operation.
n Operation
Do not expose the skin directly to cool air
for long periods of time.
(Don't sit in the draft.)
• This could harm to your health.
Do not use the product for special purposes, such as
preserving foods, works of art, etc. It is a consumer
air conditioner, not a precision refrigeration system.
• There is risk of damage or loss of property.
Do not block the inlet or
outlet of air flow.
Use a soft cloth to clean.
Do not use harsh
detergents, solvents, etc.
• It may cause product failure.
• There is risk of fire, electric
shock, or damage to the plastic
parts of the product.
Do not step on or put
anyting on the product.
(outdoor units)
Always insert the filter securely.
Clean the filter every two weeks
or more often if necessary.
• There is risk of personal injury
and failure of product.
• A dirty filter reduces the efficiency of
the air conditioner and could cause
product malfunction or damage.
Do not drink the water
drained from the product.
• It is not sanitary and could cause
serious health issues.
Do not recharge or disassemble
the batteries. Do not dispose of
batteries in a fire.
• They may burn or explode.
Do not touch the metal parts of
the product when removing the
air filter. They are very sharp!
• There is risk of personal injury.
Do not insert hands or other objects
through the air inlet or outlet while the
product is operated.
• There are sharp and moving
parts that could cause personal
injury.
Use a firm stool or ladder
when cleaning or
maintaining the product.
Replace the all batteries in the
remote control with new ones
of the same type. Do not mix
old and new batteries or
different types of batteries.
• Be careful and avoid personal
injury.
• There is risk of fire or explosion
All batteries (whether installed or
attached) should not be exposed
to excess heat like sunlight or
similar source.
• They may burn or explode.
If the liquid from the batteries
gets onto your skin or clothes,
wash it well with clean water. Do
not use the remote if the batteries
have leaked.
• The chemicals in batteries could
cause burns or other health hazards.
Owner's Manual 5
Prior to Operation
Prior to Operation
Preparing for operation
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord.
5. Do not start/stop operation by plugging/unplugging the power cord.
6. If the cord/plug is damaged, replace it with only an authorized replacement part.
Usage
1. Being exposed to direct airflow for an extended period of time could be hazardous to
your health. Do not expose occupants, pets, or plants to direct airflow for extended
periods of time.
2. Due to the possibility of oxygen deficiency, ventilate the room when used together
with stoves or other heating devices.
3. Do not use this air conditioner for non-specified special purposes (e.g. preserving
precision devices, food, pets, plants, and art objects). Such usage could damage the
items.
Cleaning and maintenance
1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur
when handling sharp metal edges.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy
the insulation, leading to possible electric shock.
3. When cleaning the unit, first make sure that the power and breaker are turned off.
The fan rotates at a very high speed during operation. There is a possibility of injury
if the unitʼs power is accidentally triggered on while cleaning inner parts of the unit.
Service
For repair and maintenance, contact your authorized service dealer.
6 Ceiling Cassette Air Conditioner
Introduction
Introduction
Symbols used in this Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
NOTICE
This symbol indicates special notes.
Features
WARNING: This appliance should be installed in accordance with national wiring
regulations. This guide acts as a guide to help to explain product features.
Anti-bacteria
Anti-bacteria
Air Outlet
Air Inlet
Remote
Controller
Owner's Manual 7
Electrical Safety
Electrical Safety
WARNING: This appliance must be properly grounded.
To minimize the risk of electric shock, you must alway plug into a grounded oulet.
Preferred method
Ensure proper ground
exists before use
WARNING: Do not cut or remove the grounding prong from the
power wire.
WARNING: Attaching the adapter ground terminal to the wall
receptacle cover screw does not ground the appliance unless the
cover screw is metal and not insulated, and the wall receptacle is
grounded through the house wiring.
WARNING: If you have any doubt whether the air conditioner is
properly grounded, have the wall receptacle and circuit checked by
a qualified electrician.
8 Ceiling Cassette Air Conditioner
Operating Instructions
Operating Instructions
Indoor Unit, Outdoor Unit
Anti-bacteria
Anti-bacteria
Air Outlet
Air Inlet
Anti-bacteria
Remote
Controller
1⃞ 2⃞ 3⃞
4⃞
5⃞
6⃞
Operation Indication Lamps
1⃞ Forced Operation : Operation procedures when remote control can't be used.
2⃞ Defrost Mode
: Lights up during defrost mode or hot start operation.
(heat pump model only)
3⃞ Timer
: Lights up during timer operation.
4⃞ Signal Receptor : Receives the signal from remote control (signal receiving sound:
two short beeps and one long beep)
5⃞ Filter Sign
: Lights up after 2400 hours from the time of first operation.
6⃞ On/Off
: Lights up during system operation.
Outdoor Unit
Air Intake
(side, rear)
Connecting Wire
Power Wire
Air Outlet
Vents
Connection Tube
Drain Hose
Heat pump model: Cassette Type Air Conditioner for cooling and heating
Cooling model: Cassette Type Air Conditioner for cooling
Owner's Manual 9
Wireless Remote Controller
Wireless Remote Controller (Standard)
10 Ceiling Cassette Air Conditioner
Wireless Remote Controller
Owner's Manual 11
Wireless Remote Controller
12 Ceiling Cassette Air Conditioner
Wireless Remote Controller
Owner's Manual 13
Part Description (Optional)
Part Description (Optional)
Name and Function of Remote Controller(PQRCVSL0QW)
1
10
9
8
2
3
7
4
11
12
13
5
6
14
15
Please attach the inform label inside of the door.
Please choose proper language depend on your
country.
1 OPERATION INDICATION
SCREEN
2 SET TEMPERATURE BUTTON
3 FAN SPEED BUTTON
4 ON/OFF BUTTON
5 OPRATION MODE SELECTION
BUTTON
6 WIRELESS REMOTE
CONTROLLER RECEIVER
• Some products don't receive the
wireless signals.
7 AIR FLOW BUTTON
8 SUBFUNCTION BUTTON
9 FUNCTION SETTING BUTTON
10 VENTILATION BUTTON
11 RESERVATION
12 UP,DOWN,LEFT,RIGHT BUTTON
• To check the indoor temperature,
press
button.
13 ROOM TEMPERATURE BUTTON
14 SETTING/CANCEL BUTTON
15 EXIT BUTTON
j Some functions may not be operated and displayed depending on the product type.
Accessory
Connection Cable
(1EA, 10m)
Screw
(4 EA)
14 Ceiling Cassette Air Conditioner
Owner's / Installation
manual
Inform label
(8EA-8Languages)
Part Description (Optional)
Standard Operation - Standard Cooling
It cools the room by comfortable and clean wind.
1 Press
indoor.
button to turn on the
button to select
2 Press
Cooling operation mode.
the desired temperature
3 Adjust
by pressing
buttons.
Press
button to check the
Room temperature.
When setting the desired
temperature higher than room
temperature, only ventilation
wind is blow out instead of
cooling wind.
h Setting Temp Range : 18˚C~30˚C (64˚F~86˚F)
Standard Operation - Power Cooling
It makes the room cool using pleasant and fresh air quickly
1 Press
indoor.
button to trun on the
button to select
2 Press
cooling operation mode.
button continuously
3 Press
until 'Po' displayed.
What is Power Cooling?
• Desired temperature: Po (actually 18°C)
• Wind flow: power wind
• Wind direction: fix to air-cooling position
}
It make room temperature
drop fast by running
h Partial product has no power air-cooling function.
Owner's Manual 15
Part Description (Optional)
Standard Operation - Heating Mode(Heat pump model only)
It supplies warm wind to the indoor
1 Press
indoor.
button to turn on the
button to select
2 Press
Heating mode.
(To check the indoor temperature,
press the room temperature button.)
the desired temperature
3 Adjust
by pressing
buttons.
When setting the desired
temperature lower than room
temperature, there is only
ventilation wind.
• Heating drive only operates at the cooling and heating model.
• Heating doesn't operate at cooling exclusive model.
Standard Operation - Dehumidification Mode
It removes humidity while air-cooling weakly.
1 Press
indoor.
button to turn on the
button to select
2 Press
Dehumidification mode.
The temperature setting can not be
adjusted during operation this mode.
the
button to select
3 Press
airflow rate feeble ’ weak ’
medium ’ strong ’ automatic.
(The initial wind powerfulness of
humidity removal drive is 'weak'.)
• In rainy season or high humidity climate, it is possible to operate simultaneously dehumidifier and
cooling mode to remove humidity effectively.
• The menu item of wind powerfulness might not be partially selected according to the product.
16 Ceiling Cassette Air Conditioner
Part Description (Optional)
Standard Operation - Auto Operation Mode
1 Press
indoor.
button to turn on the
button to select
2 Press
Artificial intelligence Mode.
can adjust
3 You
the temperature
as the picture on
the right for
cooling and
heating model.
the case of
4 For
cooling exclusive,
as the picture on
the right, you can
adjust the
temperature from
hot to cold, from
"-2" to "2" based
on "00".
When cold
When cool
When appropriate
When warm
When hot
During operating Auto Operation mode:
• We can use the FAN SPEED button
• We can change manually to other operation mode.
Owner's Manual 17
Part Description (Optional)
Standard Operation - Fan Mode
It blows the air as it is in the indoor, not the cold wind.
1 Press
indoor.
button to turn on the
2 Press
Mode.
button to select Fan
time pressing
button, you
3 Every
can select wind flow in order of
feeble → weak → medium → strong
→ automatic.
• Ventilation drive does not release cool wind but general fan
• Because it releases the wind that has no temperature difference from the room, it functions to
circulate the inside air.
• The menu item of wind powerfulness might not be partially selected according to the product.
18 Ceiling Cassette Air Conditioner
Part Description (Optional)
Standard Operation - Temperature Setting/Room Temperature Check
Temperature Setting
can simply adjust the desired
1 We
temperature.
• Press the
buttons to adjust the
desired temperature.
: Increase 1˚C or 2˚F per one time
pressing
: Decrease 1˚C or 2˚F per one time
pressing
• Room temp: Indicate the current room
temperature.
• Set temp: Indicate the temperature that user
want to set.
h Depend on what kind of controller, the desired
temperature can be adjusted at 0.5˚C or 1˚F.
Cooling operation:
- The cooling mode doesn't work if
desired temperature is higher than room
temperature Please lower the desired
temperature.
Heating operation:
- The heating mode doesn't work if desired
temperature is lower than room
temperature Please increase the desired
temperature.
Room Temperature Check
press
button, the room
1 Whenever
temperature will be displayed within 5
seconds.
After 5 seconds, it turns to display the
desired temperature.
Because of location of remote controller,
the real room temperature and the this
displayed value can be different
• For air-cooling drive, from 18°C to 30°C, and for heating drive, from 16°C to 30°C, you can
select desired temperature.
• 5°C is proper for the difference between room and outside temperature.
Owner's Manual 19
Part Description (Optional)
Standard Operation - Airflow Setting
Wind powerfulness : You can simply adjust
desired wind powerfulness.
setup desired wind
1 Please
powerfulness by wind powerfulness
button.
• Every time you press wind
powerfulness, you can select the wind flow in
order of ‘feeble → weak → weak medium →
medium → medium strong → strong → power
→ automatic’.
• The menu item might not be partially
selected according to product function.
• Please refer to product manual for product’s
detailed function.
Wind direction : You can simply adjust desired
wind direction.
set desired wind direction
1 Please
by pressing
button.
You can select wind direction of
(comfortable wind → Up/Down and
Right/Left → Right/Left →
Up/Down) by pressing
button.
Partial item of wind directions might not be
selected according to product function.
Please refer to product manual for product’s
detailed function.
20 Ceiling Cassette Air Conditioner
Part Description (Optional)
Sub function - Direct Wind / Indirect Wind
It is the function to directly or indirectly control wind direction by body perception sensor.
The method to setup direct/indirect wind
1 Please press
button.
icon of direct/indirect wind
2 The
blinks on the display, and then, if
button, direct/indirect
pressing
wind icon is fixed and the function
is setup.
direct wind
indirect wind
pressing
3 Ifsetup
mode.
button, it gets out of
Owner's Manual 21
Part Description (Optional)
Function setting -Ceiling Height Selection
Our products provide variety of air volumes and capacities according to the selection of ceiling heights.
button long for 3
pressing
1 Ifseconds,
it enters into remote
controller setter setup mode.
- If pressing once shortly, it enters
into user setup mode. Please press
more than 3 seconds for sure.
2
If moving to ceiling height selection menu by
button, it indicates as picture
pressing
below.
height value by pressing
3 Select ceiling
button. (01:Low, 02:Standard,
03:High, 04:Very high)
Function Code
4 Press
Thermistor setting
button to save.
button will exit settings mode.
5 Pressing
❈ After setup, it automatically gets out of
setup mode if there is no button input for
25 seconds.
❈ When exiting without pressing set button,
the manipulated value is not reflected.
<Ceiling Height Selection Table>
05:01
05:02
05:03
05:04
Ceiling Height Level
Low
Standard
High
Very high
Description
Decrease the indoor airflow rate 1 step from standard level
Set the indoor airflow rate as standard level
Increase indoor airflow rate 1 step from standard level
Increase indoor airflow rate 2 steps from standard level
Cooling/Heating performance is enhanced with relation to Ceiling height.
• The highest cooling heating performance and efficiency are provide at Very high.
( Some noise may be generated according to the level height setting.)
22 Ceiling Cassette Air Conditioner
Part Description (Optional)
Function setting - Filter Sign Clear
This function is to clear the indicator of indoor filter cleaning.
1 Press
until the
button repeatedly
is flashing.
the
is flashing, press
2 When
the
to clear this display
• When filter is covered by dust, it will reduce cooling/heating efficiency and accumulate more
electric power. Therefore. do clean the filter whenever cleaning time is expired.
h Filter cleaning indication is automatically cancelled without the separate cancellation after certain
period of time.
Function setting - Child Lock
It is the function to use preventing children or others from careless using.
button repeatedly until
1 Press
the
is flashing.
moving to 'setup' icon area by
2 Ifusing
button, 'setup' icon
blinks, and child lock function is
setup if pressing
button at
that time.
cancelling lock function, if moving
3 When
to 'cancel' icon by pressing
button
and then, pressing
button, child lock
function is cancelled.
button to exit.
4 Press
❈ After setup, it automatically gets out of
setup mode if there is no button input
for 25 seconds.
❈ When exiting without pressing set button,
the manipulated value is not reflected.
Owner's Manual 23
Part Description (Optional)
Function setting - Elevation Grill
This function is to move the indoor filter up/down for cleaning filter.
button
1 Press
Repeat pressing
button until
icon flash.
to descent using
button
2 Move
and press
button will display
descent icon and the up/down grill will
descent.
up/down grill descents to the
3 When
desired position, move to stop icon
suing
button and press
to stop up/down grill.
button
filter cleaning is finished, fix the
4 When
filter to the up/down grill, move to ascent
icon using
button, and press
button to ascent up/down grill.
button to exit.
5 Press
❈ After setup, it automatically
gets out of setup mode if there
is no button input for 60
seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
• Elevation grill function only operates in the indoor unit with the elevation grill.
24 Ceiling Cassette Air Conditioner
Part Description (Optional)
Function setting - Vane Angle Control
This function is to adjust angle at which airflow is blow out.
pressing
1 Repeat
icon flash.
button until
button to select active vane :
2 Press
1 / 2 / 3 / 4 / All / Standard
Select Vane number using
buttons.
❈ Vane number : No. 1, 2., 3, 4, all, or
standard
- Selected vane is in operation.
- Please verify the operating vane.
- To set the angle of all the vanes,
select 'all'.
- To set as the factory default settings,
select 'standard'.
wind angle using
3 Select
and press
button.
button,
- The boundary of wind angle settings
can be changed to 5 levels or 6 levels
according to the product.
- When selecting 'standard' for Vane number,
the wind angle does not move.
the wind angles for the remaining
4 Set
vanes as the same as above.
❈ There are products with vanes with
no. 1 and no. 2 only according to the
product types.
Press
button to exit.
setup, it automatically
5 ❈ After
gets out of setup mode if there
is no button input for 60 seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
button to complete and
6 Press
active the setting process.
(Airflow direction function will be
released whenever setting vane angle)
button to exit or
7 Press
system will automatically release
without any input after 25
seconds.
Owner's Manual 25
Part Description (Optional)
Function setting - Changing Current Time
press function setup
1 Please
button. If pressing function setup
button repeatedly, it moves to
time setup menu. ‘Time setup’
icon is indicated at that time and date
blinks at current time indication area.
Ex) Changing Current Time as
'Monday / AM 10:20'.
2 Press
day.
key to adjust the current
key to move to AM/ PM setting
3 Press
mode (the 'AM/ PM segment will flash).
AM/ PM value by
4 Setting
pressing
button.
button to move to 'Hour'
5 Press
setting mode. (the 'Hour' segment will
flash)
Hour value by pressing
6 Setting
button.
26 Ceiling Cassette Air Conditioner
Part Description (Optional)
button to move to 'Minute'
7 Press
setting mode. (the 'Minute' segment will
flash)
Minute value by pressing
8 Setting
button.
9 Press
10
button to finish.
In the process, press
button to release and exit
from setting mode.
(In case of exit with
incomplete information, it will return to
the previous setting)
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
Owner's Manual 27
Part Description (Optional)
Programming - Simple Reservation
You can set the reservation conveniently in the units of 1 hour from 1 hour to 7 hours.
button to enter the
1 Press
Programming mode.
(the
segment flashing)
Ex) Setting Simple Reservation
time as '3'.
2 Press
time.
3 Press
button to adjust reservation
button to finish setting.
button to exit.
4 Press
❈ After setup, it automatically gets out of
setup mode if there is no button input
for 25 seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
h When simple reservation setup, product automatically runs or stops after the time that is set.
28 Ceiling Cassette Air Conditioner
Part Description (Optional)
Programming - Sleep Reservation
Sleep reservation is the function of air-conditioner to run and stop after certain period of time at
sleep mode before sleep. When connected to a ventilation product and set the sleep reservation,
when it goes to the sleep mode, after the set time has elapsed.
button to enter the
1 Press
Programming mode.
Ex) Setting Sleep Reservation
time as '3'.
pressing
button to enter the
2 Repeat
SLEEP reservation setting mode.
(
3 Press
time.
segment flashing)
button to adjust reservation
The SLEEP reservation time is from 1 to
7 hours.
button to finish setting.
4 Press
Whenever reservation is done.
button to exit.
5 Press
❈ After setup, it automatically gets out of
setup mode if there is no button input
for 60 seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
- If reservation is setup, 'sleep'
indication shows up at the lower part
of LCD screen.
finishing sleep reservation setup,
6 Ifair-conditioner
product operates sleep
drive and stops after the time that is set.
Please reserve proper time at sleeping. (Too much air-cooling is not good for your health.)
• Because it automatically adjusts desired temperature for comfortable air-cooling at sleep drive,
there could be difference between remote controller's desired temperature and air-conditioner
body's desired temperature.
• Sleep reservation operates as off reservation for the product whose temperature adjustment isn't
controlled by unit of 0.5°C.
Owner's Manual 29
Part Description (Optional)
Programming - ON Reservation
Automatically turned On at reserved time that you set.
1 Press
button.
Ex) Setting ON Reservation
Time as 'AM 10:20'.
pressing
button to
2 Repeat
enter the ON reservation
setting mode.
(
segment flashing)
3 Press
setting.
button to adjust AM/ PM
button to Hour setting
4 Press
mode. When the Hour icon flash, please
setting time.
The setting range is within 1~12.
button to shift to Minute
5 Press
setting mode. When the Minute icon
flash, please setting minute the setting
range is within 00~59.
6 Press
30 Ceiling Cassette Air Conditioner
button to finish setting.
Part Description (Optional)
button to exit.
7 Press
❈ After setup, it automatically gets out of
setup mode if there is no button input
for 25 seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
- If reservation is set, 'turned on'
indication shows up at the lower part
of LCD screen, and air-conditioner
product runs at the time that is set.
- If reservation is cancelled, 'turned on'
indication disappears.
Owner's Manual 31
Part Description (Optional)
Programming - OFF Reservation
Automatically turned Off at reserved time that you set.
1 Press
button.
Ex) Setting OFF Reservation
Time as 'AM 10:20'.
pressing
button
2 Repeatedly
to enter the OFF reservation
setting mode.
(
segment flashing)
3 Press
setting.
button to adjust AM/ PM
button to shift to Hour
4 Press
setting mode. When the Hour icon flash,
please setting time.
The setting range is within 1~12.
button to shift to Minute
5 Press
setting mode. When the Minute icon
flash, please setting minute the setting
range is within 00~59.
6 Press
32 Ceiling Cassette Air Conditioner
button to finish setting.
Part Description (Optional)
button to exit.
7 Press
❈ After setup, it automatically gets out of
setup mode if there is no button input
for 25 seconds.
❈ When exiting without pressing set
button, the manipulated value is not
reflected.
- If reservation is set, 'turned off'
indication shows up at the lower part
of LCD screen, and air-conditioner
product runs at the time that is set.
- If reservation is cancelled, 'turned off'
indication disappears.
Owner's Manual 33
Part Description (Optional)
Programming : Weekly Reservation
You can set the daily reservation in weekly unit.
Weekly reservation keeps operating until before you cancel it once you setup
1
Please move to reservation setup mode by pressing reservation button.
❈ You can setup two weekly reservations for one day, and up to fourteen
reservations for a week.
For example, to setup (Tuesday morning 11:30 turned on ~ afternoon 12:30
turned off), you setup in order below.
move to 'weekly' by
2 Please
repeatedly pressing reservation
button. 'Weekly' blinks at this time.
select weekly reservation ¿
3 Please
or weekly reservation ¡ by using
button.
❈ You can setup two reservations,
weekly reservation 1 and weekly
reservation 2, for a day.
move to 'date' setup part by
4 Please
using
button. If 'date'
indication blinks, please setup date.
You can setup date from Monday to
Sunday.
move to 'AM/PM' setup part
5 Please
of turning on by using
button.
move to 'hour' setup part of
6 Please
turning on by using
button.
- It is the part to setup the time at
which air-conditioner is turned on.
change time by using
button.
7 Please
- You can setup hour 0~12.
8 Please move to 'minute' setup part of turning on by using
9 If 'minute' indication blinks, please setup 'minute' by using
34 Ceiling Cassette Air Conditioner
button.
button
Part Description (Optional)
move to 'AM/PM' setup part
10 Please
of turning off by using
button.
- AM/PM setup is identical with
turning on time setup.
11
Please move to 'hour' setup part
of turning off by using Right
button.
- It is the part to reserve the time
at which air-conditioner is
turned off.
- If 'hour' indication blinks, please
setup 'hour'.
❈ Please setup 'hour' and 'minute'
identically with the method to
setup turning on time.
finishing weekly reservation setup, please press setup/cancellation button.
12 IfWeekly
reservation setup for the day that you set is finished.
you setup with the method identical with above by selecting the day that
13 Ifyou'd
like to setup, it operates weekly reservation.
If you setup both turning on reservation time and turning off reservation time
identically, it doesn't operate reservation drive.
Weekly reservation explanation
Reservation
number
Turning on time
Turning off time
Under bar: the indication that there is weekly reservation for
corresponding day
Owner's Manual 35
Part Description (Optional)
Programming : Holiday Reservation
It automatically stops at reserved day that you set.
press
button.
1 Please
It enters into reservation
setup mode.
move to 'holiday' by repeatedly
2 Please
pressing
button.
move to 'date' that
3 Please
you want to setup holiday
by using
button.
appoint or cancel holiday by
4 Please
using
or
button.
For example, when you setup
Monday/Friday to holiday
- 'Monday', 'Friday' letter disappears.
press
5 Please
holiday setup.
button if finishing
❈ If it comes to appointed holiday,
air-conditioner automatically stops.
Once you setup holiday appointment,
until before you cancel holiday setup,
air-conditioner automatically stops
within one hour even though you run
air-conditioner.
36 Ceiling Cassette Air Conditioner
Part Description (Optional)
Ventilation setting (optional)
Incase of there is linkage between ventilator and air conditioner, it is able to control this ventilator.
1. Control using remote controller where air conditioner indoor unit and the
ventilation product is installed at the same time.
Single Operation
Interlinked Operation
(General Ventilation Single Operation)
(General Ventilation Interlinked Operation)
Wired Remote
Controller
(Direct Expansion Ventilation Single Operation)
Direct
Expansion
Ventilation
General
Ventilation
Air conditioner
Indoor unit
General
Ventilation
General
Ventilation
Wired Remote Controller
(Direct Expansion Ventilation Interlinked Operation)
Direct Expansion
Ventilation
Air conditioner
Indoor unit
Wired Remote
Controller
Wired Remote Controller
Direct
Expansion
Ventilation
h Connecting wires is the same as air conditioner user manual. (Refer to page about Group control)
2. Press 'Ventilation' button on the wired remote controller and enter Ventilation
control mode to check the operation of ventilation product.
3. To convert back to air conditioner mode, press 'Ventilation' button at the
ventilation mode.
- If no button pressed for 15 seconds or more at ventilation mode, it automatically converts back to air
conditioner mode.
- Ventilation product represent general ventilation product and direct expansion ventilation product.
Aircon
Ventilator
220V data link
Owner's Manual 37
Maintenance and Service
Maintenance and Service
CAUTION Before performing any maintenance, turn off the main power to the system.
Indoor Unit
Grille, Case and Remote Control
p Turn the system off before cleanining, To clean, wipe
with a soft, dry cloth. Do not use bleach or abrasives.
NOTICE
Supply power must be disconnected before cleaning the
indoor unit.
Anti-biofilter
Air
Intake
Air Outlet
Remote
Controller
Air Filters
1 Remove the Air filters.
n Take hold of the tab and pull slightly
forward to remove the filter.
The air filters behind the front grille should be
checked and cleaned once every 2 weeks or more
often if neccessary.
Rack
CAUTION: When the air filter is to
be removed, do not touch the metal
parts of the indoor unit.
It may cause an injury.
Air Filter
n Never use any of the followings:
• Water hotter than 40°C.
Could cause deformation and/or
discoloration.
• Volatile substances.
Could damage the
surfaces of the air
conditioner.
Be
2 Clean dirt from the air filter using a
vacuum cleaner or washing with water.
n If dirt is conspicuous, wash with a neutral
detergent in lukewarm water.
n If hot water (50°C or more) is used, it
may be deformed.
SI
N NER
n zene
SCOU
RING C
C LB A
R G ER G C
3 After washing with water, dry well
in the shade.
n Do not expose the air filter to direct
sunlight or heat from a fire when
drying it.
4 Install the air filter.
Outdoor Unit
The heat exchanger coils and panel vents of the outdoor
unit should be checked regularly. If clogged with dirt or soot,
the heat exchanger and panel vents may be professionally
steam cleaned.
NOTICE
Dirty or clogged coils will reduce the operating efficiency of the
system and cause higher operating costs.
38 Ceiling Cassette Air Conditioner
Air Intake
(side, rear)
Air Outlet
Connecting Wire
Power Wire
Connection Pipe
Drain Hose
Maintenance and Service
When the air conditioner is not going to be used for a long time.
When air conditioner is not going to be used for a long time.
1. Operate the air conditioner at the following settings for 2 to 3 hours.
• Type of operation: Fan operation mode.(Refer to page 15.)
• This will dry out the internal mechanisms.
2. Turn off the breaker.
CAUTION Turn off the circuit breaker when the air conditioner is not going to be used
for a long time. Dirt may collect and may cause a fire.
Helpful information
The air filters and your electiric bill.
If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to
operate the air conditioner will be wasted.
When the air conditioner is to be used again.
1. Clean the air filter and install it in the indoor unit.
(Refer to page 35 for cleaning it.)
2. Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.
3. Check that the ground wire is connected correctly. It may be connect to the indoor unit side.
Operation Tips
Do not overcool the room.
This is not good for your health
and wastes electricity.
Make sure that the doors
and windows are shut tight.
Avoid opening doors and
windows as much as possible
to keep the cool air in the
room.
Keep blinds or curtains
closed.
Keep the room temperature
uniform.
Do not let direct sunshine enter Adjust the vertical and
the room when the air
horizontal airflow direction to
conditioner is in operation.
ensure a uniform temperature
in the room.
Clean the air filter regularly.
Blockages in the air filter
reduce the airflow and lower
cooling and dehumidifying
effects. Clean at least once
every two weeks.
Ventilate the room
occasionally.
Since windows are kept
closed, it is a good idea to
open them and ventilate the
room now and then.
Owner's Manual 39
Maintenance and Service
Troubleshooting Tips! Save time and money!
Check the following points before requesting repairs or service.... If the fault persists, please
contact your dealer or service center.
Case
Explanation
See page
The air conditioner does not
operate.
• Have you made a mistake in timer operation?
23~33
The room has a peculiar odor.
• Check that this is not a damp smell exuded by
the walls, carpet, furniture, or cloth items in the
room.
• Has the fuse blown or has the circuit breaker
been tripped?
It seems that condensation is
leaking from the air
conditioner.
• Condensation occurs when the airflow from the
air conditioner cools the warm room air.
Air conditioner does not
operate for about 3 minutes
when restarted.
• This is the protector of the mechanism.
Does not cool or heat
effectively.
• Is the air filter dirty? See air filter cleaning
instructions.
• Wait about three minutes and operation will
begin.
-
-
-
35
• The room may have been very hot when the
room air conditioner was first turned on. Allow
time for it to cool down.
The air conditioner operation is
noisy.
• Has the temperature been set incorrectly?
16
• Are the indoor unit's air inlet or outlet vents
obstructed?
-
• For a noise that sounds like water flowing.
-This is the sound of freon flowing inside the air
conditioner unit.
• For a noise that sounds like the compressed
air releasing into atmosphere.
-This is the sound of the dehumidifying water
being processed inside the air conditioning
unit.
-
Remote control display is faint,
or no display at all.
• Are the batteries depleted?
Crack sound is heard.
• This sound is generated by the
expansion/constriction of the front panel, etc.
due to changes of temperature.
-
• Cleaning the filter, press the Timer button and
◀ button of wired remote controller at the same
time for 3 sec.
-
Filter sign lamp (LED) is ON.
• Are the batteries inserted in the opposite (+)
and (-) directions?
40 Ceiling Cassette Air Conditioner
-
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